1261259 has 2 divisors, whose sum is σ = 1261260. Its totient is φ = 1261258.

The previous prime is 1261223. The next prime is 1261261. The reversal of 1261259 is 9521621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1261259 - 2¹² = 1257163 is a prime.

Together with 1261261, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1261279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630629 + 630630.

It is an arithmetic number, because the mean of its divisors is an integer number (630630).

2^1261259 is an apocalyptic number.

1261259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1261259 is an equidigital number, since it uses as much as digits as its factorization.

1261259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 26.

The square root of 1261259 is about 1123.0578791852. The cubic root of 1261259 is about 108.0441920200.

The spelling of 1261259 in words is "one million, two hundred sixty-one thousand, two hundred fifty-nine".